Dactylogyrids (Platyhelminthes: Monogenea) from Sudanese Labeo spp., with a description of Dogielius sennarensis n. sp. and a redescription of Dogielius fl osculus Guégan, Lambert &amp; Euzet, 1989

Pravdová, Markéta; Ondračková, Markéta; Přikrylová, Iva; Blažek, Radim; Mahmoud, Zuheir N.; Gelnar, Milan

doi:10.2478/helm-2018-0033

Cited by 5 publications

(14 citation statements)

References 28 publications

(34 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The monophyly of D. pulcher and D. marocanus is also supported by morphology; both species possess a haptoral ventral bar of the “magnihamatus” type and anchor hooks with elongated inner roots (see [ 11 ] for morphology). The same morphological features are also shared by the Dactylogyrus species parasitizing West African Labeo (see [ 95 , 96 ]), further supporting the phylogenetic proximity of D. pulcher and D. marocanus to congeners of widely distributed African cyprinids of Labeo . In addition, the similarity in haptoral features, especially the absence of a ventral connective bar, is also recognized in the Dactylogyrus of cyprinins of presumed West-Asian origin (e.g.…”

Section: Discussionsupporting

confidence: 56%

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

et al. 2021

View full text Add to dashboard Cite

Background Freshwater fauna of the Middle East encompass elements shared with three continents—Africa, Asia, and Europe—and the Middle East is, therefore, considered a historical geographic crossroad between these three regions. Even though various dispersion scenarios have been proposed to explain the current distribution of cyprinids in the peri-Mediterranean, all of them congruently suggest an Asian origin for this group. Herein, we investigated the proposed scenarios using monogenean parasites of the genus Dactylogyrus, which is host-specific to cyprinoid fishes. Methods A total of 48 Dactylogyrus species parasitizing cyprinids belonging to seven genera were used for molecular phylogenetic reconstruction. Taxonomically important morphological features, i.e., sclerotized elements of the attachment organ, were further evaluated to resolve ambiguous relationships between individual phylogenetic lineages. For 37 species, sequences of partial genes coding 18S and 28S rRNA, and the ITS1 region were retrieved from GenBank. Ten Dactylogyrus species collected from Middle Eastern cyprinoids and D. falciformis were de novo sequenced for the aforementioned molecular markers. Results The phylogenetic reconstruction divided all investigated Dactylogyrus species into four phylogenetic clades. The first one encompassed species with the “varicorhini” type of haptoral ventral bar with a putative origin linked to the historical dispersion of cyprinids via the North African coastline. The second clade included the majority of the investigated species parasitizing various phylogenetically divergent cyprinid hosts. The morphological and molecular data suggest the ancestral diversification of the species of this clade into two groups: (1) the group possessing the haptoral ventral bar of the “cornu” type, and (2) the group possessing the “wunderi” type. Dactylogyrus diversification apparently occurred in the Middle East, which is indicated by the presence of species with all morphotypes in the region. The last two clades included species parasitizing cyprinids with an East Asian origin, and species possessing the “magnihamatus” type of ventral bar. Conclusions The molecular data suggest that some morphological characters of host-specific parasites may undergo convergent evolution in the divergent lineages, and therefore, to fully resolve the phylogenetic relationships among host-specific parasites, an integrative approach combining morphological and molecular data is still needed. In addition, our study indicates that parasite diversity in many regions is still under-explored, and thus we highlight the importance of studies of host-associated parasites, especially in the context of freshwater fish biogeography. Graphical Abstract

show abstract

Section: Discussionsupporting

confidence: 56%

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

et al. 2021

View full text Add to dashboard Cite

show abstract

“…n. was described from the fins of Brycinus nurse (type host) from Sinnar (type locality), Blue Nile, Sudan by [30].The specific name is derived from 'girgifa', common name for B.nurse in Nubian, old Sudanese. Significant addition to the monogenean of Sudan was made by [22,23,24] who described six new monogeneans species to science from Sudan and several locality records of monogenea to Sudan.…”

Section: Parasitic Trematodamentioning

confidence: 99%

“…Quadriacanthus clariadis from a clariid fish is sister species to Q. bagrae from a bagrid host indicating a possible host-switching event in the evolutionary history of the genus [22]. TheDactylogyrids (Platyhelminthes: Monogenea) from Sudanese Labeo spp was studied by [23]. Based on a morphometric evaluation of the sclerotised structures [23] reported the presence of ten Dactylogyrus spp., and three Dogielius spp.…”

Section: Parasitic Trematodamentioning

confidence: 99%

See 1 more Smart Citation

A Review of Parasites of Freshwater Fishes of the Sudan from 1902 to 2020

2022

NSJ

View full text Add to dashboard Cite

BackgroundThis review was conducted from 1996 to 2020 aiming to compile the findings of parasites of freshwater fishes of Sudan in a single document. MethodsThe present review was based on 105 scientific paper, 3 conferences abstracts, 3 graduation dissertation, 7 master and 2 Ph.D. theses, one unpublished reports, 10 books, and one technical report. The work covered the period from 1902 to 2020. ResultsSome thousands of freshwater fish specimens were examined for their ecto-parasites and/or endo-parasites. Fifty-eight fish species were reported infected and 162 parasitic species including 32 new species were collected. The parasites found were three bacterial and three fungal species collected from Oreochromis niloticus. From 10 species of fish, 19 protozoans were described.From 10 species of fish, 22 Monogenean species were found including 7 new species. One new Aspidogastrean species was collected from Labeobarbus bynni. From 29 fish species 23 Digenean species were collected including five new ones. From 41 species of fish, 44 species of cestodes parasites were collected including 11 species new to science. Twenty parasitic Nematodes species including seven new ones were collected from 32 fish species. From 12 fish species 9 Crustacean were described. Nine Acanthocephalans including one new species from Ichthyborus besse were collected from 11 fish species. Co-infection was observed.

show abstract

“…The author contributed in the following four studies: diversity of ants of Sudan based on material collected during environmental impact assessment surveys; parasitological findings from freshwater fishes collected from Kosti, Sinnar, Khashm el Girba "Parasitological survey of freshwater fishes of the Nile project" [3][4][5]; the diversity of fresh water fishes project [6] and the avifauna of Lake Nubia documented in "Watershed Management Framework: Nubia Lake Environmental Survey" [7].…”

Section: Introductionmentioning

confidence: 99%

Contribution of Research Projects and Environmental Impact Assessment Studies to Fauna Biodiversity in Sudan

Mahmoud

2020

IJESNR

View full text Add to dashboard Cite

Eighteen species of ants were recorded for the first time in Sudan including Lepisiota omeri n. sp.; Parasitological surveys of freshwater fishes of the Sudan during 2006 to 2014revealed the presence of four genera of parasitic crustacean; 42 species belonging to 19 monogenean genera parasites were collected from 26 fish species. Out of these the following five species are new to science (n. sp.): Quadriacanthus fornicatus, Q. pravus, Q. zuheiri, Q. mandibulatus and Dogielius senegalensis. Seven new records to the Sudan helminthes were added. These are: two cestodes (Monobothrioides tchadensis and Proteocephalus glanduligerus); one digenetic (Clinostomum complanatum larva) and three nematodes (Capillaria sp., Spinitectus sp. and Philometra bagri. Recording of Barsonella lafoni as a n. sp. of Proteocephalidean (Cestoda) from Clarias catfishes was based on material from Tarkana Lake (Kenya) and Wadi Halfa, Lake Nubia, Sudan.Fourteen nematodes including Cucullanus mormyri sp. n. from Mormyrus caschive from Kosti (White Nile) and Procamallanus (Spirocamallanus) pseudospiralis sp. n. from Synodontis schall from Khartoum, and S. frontosus, S. nigrita and S. schall from Khashm el Girba (Atbara River). In addition to two nematodes Contracaecum sp. Third stage-larvae Type 2 and Capillariidae gen. sp., needs further evaluation. All these parasites represent new host and geographical records. With respect to fishes an apparently undescribed Haplochromis species, marked variation in Sarotherodon galilaeus populations were noticed. Paradistichodus dimidiatus and Enteromius macrops were reported for the first time from the main Nile Basin. The mormyrid species Cyphomyrus petherici and Petrocephalus keatingii, as well as the small mochokid Mochokus brevis are new locality record for the White Nile. Coptodon zilli is a new locality record for Lake Nubia. Six bird species: Pelecanus onocrotalus, Phalacrocorax africanus, Ciconia ciconia, Platalea leucorodia, Haliaetus vocifer and Pluvianus aegyptius were recorded for the first time from Lake Nubia.

show abstract

Dactylogyrids (Platyhelminthes: Monogenea) from Sudanese Labeo spp., with a description of Dogielius sennarensis n. sp. and a redescription of Dogielius fl osculus Guégan, Lambert & Euzet, 1989

Cited by 5 publications

References 28 publications

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

A Review of Parasites of Freshwater Fishes of the Sudan from 1902 to 2020

Contribution of Research Projects and Environmental Impact Assessment Studies to Fauna Biodiversity in Sudan

Contact Info

Product

Resources

About